Original Plant: The immature fruit of Citrus aurantium L. Specification: Synephrine 6%-30% Appearance: Brownish yellow hygroscopic powder Test Method: HPLC Molecular Formula: C9H13NO2 Molecular Weight: 167.20 CAS No.: 94-07-5 Discription: Citrus aurantium is young fruit of lime, it is ball-shaped with diameter 0.3 ~ 3cm, dark-green or gray-green appearance,covered with oil maculae and farrow with some yellow-white flecks. It has strong aroma. It tastes bitter at first, and then a little acid. In application of traditional Chinese medical science, it is used to dispel bloating and a lump in the abdomen and phlegm, and to cureedema,constipation, gastroptosis, prolapse of uterus and rectocele.Anti- tumour, prevent osteoporosis, reduce cholesterin and protect heart.Nerve protection and prevent diseases of degeneration of nerve.Relieve menopausal symptoms of women, improve bone metabolism and protect cardiovascular system, etc.